Space & Satellites
Northrop Grumman Tests NASA BOLE Rocket Booster in Utah
Northrop Grumman’s BOLE booster achieves 4M lbs thrust in Utah test, advancing Artemis missions with composite tech despite nozzle anomaly.

Northrop Grumman’s BOLE Solid Rocket Booster: Pushing the Limits of Space Propulsion
On June 26, 2025, Northrop Grumman conducted a full-scale static fire test of NASA’s Booster Obsolescence and Life Extension (BOLE) solid rocket booster in Promontory, Utah. This test marked a major milestone in the evolution of solid rocket propulsion, showcasing the most powerful segmented solid rocket motor ever built for human spaceflight. Producing over 4 million pounds of thrust, the 156-foot booster is a critical component in advancing NASA’s Artemis program and future deep-space missions.
BOLE represents a significant evolution from the Space Launch System (SLS) boosters, integrating a carbon-fiber composite case, updated propellant formulation, and advanced control systems. These innovations aim to enhance performance, reduce weight, and address the obsolescence of legacy components. While the test encountered an anomaly near the end of the burn, the data collected is expected to refine future designs and improve reliability for upcoming Artemis missions.
This article explores the technical advancements, test outcomes, economic context, and strategic implications of the BOLE booster, offering a comprehensive look at its role in shaping the future of human space exploration.
Technical Innovations and Performance Enhancements
Composite Case and Structural Improvements
One of the most notable changes in the BOLE booster is the transition from a steel casing to a carbon-fiber composite structure. This shift reduces the overall weight by approximately 15%, allowing for better thrust-to-weight ratios and increased payload capacity. The new casing, developed using sand-mandrel technology, offers enhanced structural integrity under high-pressure conditions and streamlines manufacturing through automation.
By leveraging composite materials, Northrop Grumman aligns BOLE with commercial aerospace standards, promoting interoperability across government and private-sector programs. The integration of U.S.-sourced metallic components also strengthens domestic supply chains, reducing reliance on obsolete parts and foreign suppliers.
These structural innovations not only improve performance but also support long-term sustainability in booster production. The lighter, more resilient casing is crucial for supporting missions that demand high payload capacities, such as lunar habitat modules or Mars-bound cargo.
“The carbon fiber composite case enables better booster performance, faster manufacturing, and aligns with commercial standards by providing commonality among our infrastructure, supply chain, and manufacturing operations.” — Northrop Grumman
Propellant and Thrust Vector Control Systems
BOLE’s updated propellant formulation includes a high-energy mix of ammonium perchlorate, aluminum powder, and PBAN (polybutadiene acrylonitrile) binder. This composition increases energy density by about 12% compared to the SLS Block 1 boosters, allowing for more efficient combustion and higher thrust output.
Complementing the propellant upgrades is the introduction of an electronic thrust vector control (eTVC) system. Unlike traditional hydraulic actuators, the eTVC uses electromechanical drives to adjust the nozzle direction with millisecond precision. This system enhances flight stability and trajectory control, especially during critical phases such as liftoff and stage separation.
These propulsion and control advancements are derived from Northrop Grumman’s previous work on the OmegA rocket and other defense systems, emphasizing the cross-application of proven technologies. As a result, BOLE represents a fusion of legacy reliability and cutting-edge innovation.
Test Results and Anomaly Overview
The June 2025 test, designated Development Motor 1 (DM-1), aimed to validate BOLE’s integrated systems under full-scale conditions. Over 700 data channels monitored thermal, structural, and combustion parameters during the two-minute burn. Initial results were promising: the booster achieved over 4 million pounds of thrust and maintained structural integrity for most of the test duration.
However, at around 110 seconds into the burn, an anomaly occurred involving the nozzle’s carbon-carbon throat insert. High-speed footage showed debris ejecting from the nozzle, followed by asymmetric flame patterns. The nozzle eventually disintegrated, though the motor continued firing until shutdown at 140 seconds.
Post-test analysis attributed the failure to thermal erosion triggered by localized propellant segregation. Despite the anomaly, 92% of test objectives were achieved, including successful validation of the composite casing and eTVC system. The incident provides critical data for refining nozzle design and improving propellant casting processes.
“While the motor appeared to perform well through the most harsh environments of the test, we observed an anomaly near the end… This test provides us with valuable data to iterate our design for future developments.” — Jim Kalberer, VP, Propulsion Systems, Northrop Grumman
Strategic and Economic Implications
Program Funding and Lifecycle Costs
BOLE development is funded through NASA’s $3.19 billion Booster Production and Operations Contract (BPOC) awarded in 2021. This contract supports booster production for Artemis IV-VIII and the development of BOLE for Artemis IX and beyond. Each BOLE unit is estimated to cost around $336 million, a notable reduction from the $470 million cost of earlier SLS boosters.
The cost savings are attributed to supply chain consolidation, automated manufacturing, and design standardization. However, challenges remain. NASA’s Office of Inspector General has reported cost overruns in RS-25 engine production, which may offset some of the savings from BOLE.
Overall, the BOLE program is projected to cost $4.8 billion through 2035, including design iterations and anomaly resolution. These investments reflect NASA’s commitment to maintaining a domestic solid motor industrial base and supporting high-performance launch capabilities for deep space missions.
Integration with Artemis Program
BOLE’s operational debut is scheduled for Artemis IX, tentatively planned for 2033. Earlier Artemis missions will continue using legacy five-segment boosters derived from the Space Shuttle program. The transition to BOLE is contingent on resolving the nozzle anomaly and completing additional tests by 2027.
Each BOLE booster adds approximately five metric tons of payload capacity to lunar orbit, a critical enhancement for assembling infrastructure like the Lunar Gateway. However, delays in BOLE readiness could impact the Artemis schedule, potentially affecting timelines for Mars mission preparations.
NASA officials acknowledge the complexity of aligning booster development with mission cadence. The program must balance technical progress with budgetary constraints and evolving policy priorities, especially amid discussions about scaling back the SLS program after Artemis III.
Global Context and Competitive Landscape
BOLE enters a competitive global market for heavy-lift propulsion. Europe’s P120C solid booster, used in Ariane 6, and India’s S200 booster for LVM3 offer alternative approaches with varying cost and performance trade-offs. While BOLE leads in segmented motor thrust, its high cost per kilogram to orbit, estimated at $5,000, limits its commercial viability compared to reusable systems like SpaceX’s Falcon Heavy.
Nonetheless, BOLE’s technology could be adapted for other applications, such as tactical missiles or planetary cargo missions. Its composite casing and eTVC systems are scalable and may support future hybrid launch architectures combining solid and liquid propulsion.
Strategically, BOLE strengthens the U.S. position in solid propulsion technology, supporting thousands of jobs and preserving industrial capabilities critical to national security and space exploration.
Conclusion
The BOLE booster test marks a significant step in the evolution of solid rocket propulsion. Despite the nozzle anomaly, the test validated key innovations in materials, propellant, and control systems. These advancements promise enhanced payload capacity and improved manufacturing efficiency, supporting NASA’s long-term exploration goals.
Looking ahead, the success of BOLE depends on resolving technical issues, securing sustained funding, and aligning with broader space policy objectives. If fully realized, BOLE could extend the capabilities of the SLS program into the 2040s and facilitate human missions to the Moon, Mars, and beyond.
FAQ
What is the BOLE booster?
BOLE (Booster Obsolescence and Life Extension) is a new solid rocket booster developed by Northrop Grumman for NASA’s Artemis missions. It features a composite casing, updated propellant, and advanced control systems.
How powerful is the BOLE booster?
The BOLE booster produces over 4 million pounds of thrust, making it the most powerful segmented solid rocket motor ever built for human spaceflight.
What caused the anomaly during the June 2025 test?
The anomaly was caused by thermal erosion in the nozzle’s carbon-carbon throat insert, likely due to propellant segregation. Despite this, 92% of test objectives were met.
When will BOLE be used in a mission?
BOLE is expected to debut on Artemis IX, currently scheduled for 2033, pending resolution of the nozzle issue and completion of further testing.
Why is BOLE important for NASA?
BOLE enhances payload capacity, supports U.S. manufacturing, and addresses the obsolescence of legacy components, making it vital for future deep-space missions.
Sources: Northrop Grumman, NASA, NASA Office of Inspector General, European Space Agency, ISRO
Photo Credit: Northrop Grumman
Space & Satellites
Planet Labs Germany and Isar Aerospace Sign Launch Deal
Planet Labs Germany and Isar Aerospace target a Pelican satellite launch within 12 months aboard the Spectrum rocket from Norway.

Planet Labs Germany and Isar Aerospace have signed a strategic launch agreement to send a next-generation Pelican satellite into orbit, marking the first time a German-built satellite will fly on a domestic launch vehicle. The mission will utilize Isar Aerospace’s Spectrum rocket lifting off from the company’s dedicated complex at Andøya Space in Norway.
Announced in a press release on July 2, 2026, the partnership targets a launch window within 12 months, potentially placing the mission as early as late 2026. The agreement pairs a subsidiary of Earth observation operator Planet Labs PBC with a European launch startup to demonstrate sovereign space capabilities for the German commercial space sector.
Expanding German Space Manufacturing
The Pelican satellite designated for this mission will be assembled at Planet’s upcoming manufacturing facility in Berlin. To support the expansion of its production capabilities, Planet expects to add 70 new employees to its existing Berlin workforce of approximately 150 personnel.
Isar Aerospace will manufacture the Spectrum launch vehicle at its 40,000-square-meter factory located near Munich. The launch provider plans to scale its production capacity to build 40 launch vehicles per year at the Munich site to meet commercial and government demand.
Germany has set out an ambitious space agenda. Planet and Isar Aerospace are responding to the moment and delivering a first for the country: both satellite and rocket built in Germany.
Martin Polak, Managing Director of Planet Labs Germany, stated that the joint teams aim to execute the first launch within less than 12 months of the agreement. He noted the timeline showcases an agile aerospace approach supporting national priorities across security, resilience, and civil applications.
Constellation Deployment and Launch Vehicle Status
Planet Labs PBC has been rapidly deploying its next-generation high-resolution Pelican constellation throughout the year. The company successfully launched three Pelican satellites on May 3, 2026, and announced the shipment of its Pelican-11 satellite to a launch site on June 2, 2026.
The launch agreement represents a significant commitment to Isar Aerospace. According to reporting by Aviation Week, the startup’s Spectrum launch vehicle has yet to reach orbit. The upcoming mission will serve as a critical test of the vehicle’s commercial viability.
Stella Guillen, Chief Commercial Officer of Isar Aerospace, said the collaboration underscores the growing strategic importance of the European space ecosystem. She added that the company’s integrated launch capability aims to serve a rapidly growing global demand for access to space.
AirPro News analysis
We view this agreement as a critical milestone for European sovereign space capabilities. By pairing a domestic payload with a domestic launch provider, Germany is demonstrating a closed-loop commercial space ecosystem that reduces reliance on foreign launch services. However, the aggressive 12-month timeline relies heavily on Isar Aerospace successfully debuting its Spectrum rocket, a vehicle that has not yet achieved orbit. If successful, this mission could position Isar Aerospace as a primary launch provider for European Earth observation constellations and validate Planet’s strategy of diversifying its launch portfolio.
Sources: Planet Labs / Business Wire
Photo Credit: Isar Aerospace
Space & Satellites
Firefly Aerospace Advances Esrange Launch Complex for 2028 Orbital Debut
Firefly Aerospace and SSC Space complete infrastructure at Esrange Space Center, targeting first orbital launch in 2028.

Firefly Aerospace and the Swedish Space Corporation (SSC Space) have completed initial infrastructure and secured transatlantic regulatory frameworks to advance pad construction at Launch Complex 3C at Sweden’s Esrange Space Center, targeting a first orbital launch in 2028.
Announced in a June 30, 2026, press release, the milestone establishes a foundation for dedicated orbital launch capabilities from mainland Europe. The partnership will utilize Firefly’s Alpha launch vehicle to serve European commercial customers and the Swedish Armed Forces, expanding access to space for allied nations.
Infrastructure and regulatory progress
The companies have completed several key infrastructure projects at Launch Complex 3C to support the upcoming orbital missions. The finalized facilities include a launch control center, a payload processing facility, and a launch vehicle integration building. The site also features newly installed tracking and control systems, alongside dedicated security and storage facilities.
The physical construction aligns with recent diplomatic agreements designed to facilitate international commercial space operations. In April 2026, the Swedish National Space Agency (SNSA) and the U.S. Federal Aviation Administration (FAA) signed a Memorandum of Cooperation to streamline the launch licensing process and establish a shared understanding of commercial space regulations. This agreement builds upon a broader framework, making Sweden the sixth country to sign a Technology Safeguards Agreement with the United States.
Defense applications and payload capabilities
The development at Esrange Space Center carries direct implications for European defense logistics. SSC Space recently signed an agreement valued at SEK 209 million with the Swedish Defense Materiel Administration (FMV). The contract is structured to provide the Swedish Armed Forces with dedicated satellite launch capabilities from the domestic spaceport.
Missions from Launch Complex 3C will utilize the Firefly Alpha, a two-stage launch vehicle capable of delivering a 1,000-kilogram payload to Low Earth Orbit (LEO). The deployment of an American rocket from European soil represents a specific operational strategy for the Texas-based manufacturer.
“We’re proud to partner with SSC Space and work collaboratively with U.S. and Swedish agencies to provide European customers with a dedicated orbital launch capability using our flight-proven Alpha rocket. Our ‘launch as a franchise’ model provides our nation and allies with the launch site diversification required for resilient, responsive space missions.”
The statement from Firefly Aerospace CEO Jason Kim highlights the company’s focus on global launch expansion, utilizing the Swedish site as the starting point for its international franchise model.
AirPro News analysis
We view Firefly’s “launch as a franchise” model as a strategic pivot in the commercial space sector, moving away from centralized domestic launch sites toward distributed, allied-nation launch capabilities. The SEK 209 million defense agreement underscores the growing military reliance on commercial launch providers for responsive space access. By establishing a physical and regulatory foothold at Esrange Space Center, Firefly positions the Alpha rocket to capture a significant share of the emerging European small-lift market, while simultaneously offering the U.S. and its allies redundant launch options outside of traditional North American spaceports.
Sources: Firefly Aerospace
Photo Credit: Firefly Aerospace
Space & Satellites
Rocket Lab to Acquire Iridium Communications for $8 Billion
Rocket Lab agrees to acquire Iridium Communications for ~$8B, combining launch capabilities with Iridium’s LEO satellite network.

Rocket Lab Corporation (Nasdaq: RKLB) has entered into a definitive agreement to acquire satellite operator Iridium Communications Inc. (Nasdaq: IRDM) in a cash and stock transaction valuing the company at approximately $8.0 billion. The deal, announced on June 29, 2026, transforms the launch provider into a fully vertically integrated space enterprise with an immediate foothold in global satellite connectivity.
Under the terms detailed in a joint press release, Iridium stockholders will receive $54.00 per share, consisting of $27.00 in cash and a portion of Rocket Lab common stock based on a collar band exchange ratio between $67.50 and $112.50. The Acquisitions merges Rocket Lab’s launch and spacecraft Manufacturing capabilities with Iridium’s globally harmonized L-band spectrum and established Low Earth Orbit (LEO) satellite network, which currently supports 2.55 million active subscribers worldwide.
Strategic integration and market expansion
The transaction positions Rocket Lab to capture a larger share of the space-based applications Market-Analysis, including satellite Internet of Things (IoT), Direct-to-Device (D2D) communications, and Positioning, Navigation, and Timing (PNT) services. Iridium reported $871.7 million in revenue and $495 million in Operational EBITDA for 2025, providing Rocket Lab with a highly profitable, established communications business operating at a 57 percent margin.
A primary operational synergy of the merger is the elimination of third-party launch costs for the deployment and replenishment of the Iridium NEXT constellation. Rocket Lab intends to utilize its Electron and upcoming Neutron launch vehicles to guarantee orbital access and maintain continuity of service for the network.
Sir Peter Beck, Founder and CEO of Rocket Lab, described the agreement as a defining moment for the space industry and the start of a new era of strategic growth for both companies.
“By marrying Iridium’s deep heritage, trusted infrastructure, and highly sought-after spectrum with Rocket Lab’s extensive and proven launch and manufacturing capabilities, we have the capability to unlock entirely new markets,” Beck stated. “We will go far beyond maintaining a legacy; we are going to build upon it to pioneer next-generation space applications and deliver sought-after capabilities to existing and new customers.”
Accelerating next-generation satellite services
The acquisition occurs as the space and terrestrial communications sectors increasingly converge. Rocket Lab plans to leverage the combined company’s resources to accelerate the development of Iridium’s next-generation constellation. This includes advancing D2D services targeted at United States national security and emergency response sectors, where traditional terrestrial networks may be unavailable or compromised.
Iridium CEO Matt Desch noted that critical services will increasingly depend on space-based capabilities as the industry evolves. He emphasized that success in the sector requires bringing innovations to space quickly and sustaining them efficiently over time.
“We’re excited about being able to accelerate the next generation of IoT, aviation, maritime, PNT, and national security capabilities, and pursue new innovative applications as part of Rocket Lab,” Desch said.
To fund the cash component of the transaction, Deutsche Bank and Wells Fargo have committed a $3.6 billion, 364-day senior secured bridge term loan facility. The transaction is expected to close in mid-2027, pending approval from stockholders and regulatory authorities, including the U.S. Securities and Exchange Commission (SEC).
AirPro News analysis
We view this $8.0 billion acquisition as a structural shift in the aerospace sector, moving away from the traditional separation of launch providers and satellite operators. By bringing Iridium in-house, Rocket Lab secures an anchor tenant for its Neutron launch vehicle while simultaneously capturing the high-margin recurring revenue of Iridium’s subscriber base.
The timing is particularly notable given the tightening availability of global launch capacity. Owning internal launch capabilities insulates the Iridium network from external supply chain bottlenecks and launch delays. Controlling both the manufacturing of the spacecraft and the launch vehicle also allows for deep vertical integration, potentially lowering the capital expenditure required for future constellation upgrades and D2D network deployments.
Sources: Iridium Communications Inc. / Rocket Lab Corporation
Photo Credit: Rocket Lab Corporation
-
Aircraft Orders & Deliveries2 days agoPhilippine Airlines Orders Up to 20 Boeing 787-10 Dreamliners
-
Defense & Military1 day agoBombardier Defense Signs 10-Year Support Deal With Sweden
-
Aircraft Orders & Deliveries2 days agoAerCap Orders 15 Boeing 787-9 Dreamliners at Farnborough 2026
-
Aircraft Orders & Deliveries2 days agoRiyadh Air Orders 31 A350-1000s and 67 Boeing 787s
-
Defense & Military1 day agoGE Aerospace and Magellan Sign F414 MRO MOU for Canada
